Apply the standard RSI formula to the HA Close price (or optionally, the ((HA High + HA Low + HA Close) / 3) average for even more smoothing).
While the standard period is 14, these are optimized variations for the Heikin Ashi smoothed version: heikin ashi rsi oscillator mt4
For the best performance on MT4, consider adjusting the period settings based on your goals: Apply the standard RSI formula to the HA
